354339920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{419}}^1$

素因数の和:505

約数の個数: 120

約数和(自身を含む): 930877920

約数和(自身を除く): 576538000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 419, 440, 496, 620, 682, 838, 880, 961, 1240, 1364, 1676, 1705, 1922, 2095, 2480, 2728, 3352, 3410, 3844, 4190, 4609, 4805, 5456, 6704, 6820, 7688, 8380, 9218, 9610, 10571, 12989, 13640, 15376, 16760, 18436, 19220, 21142, 23045, 25978, 27280, 33520, 36872, 38440, 42284, 46090, 51956, 52855, 64945, 73744, 76880, 84568, 92180, 103912, 105710, 129890, 142879, 169136, 184360, 207824, 211420, 259780, 285758, 368720, 402659, 422840, 519560, 571516, 714395, 805318, 845680, 1039120, 1143032, 1428790, 1610636, 2013295, 2286064, 2857580, 3221272, 4026590, 4429249, 5715160, 6442544, 8053180, 8858498, 11430320, 16106360, 17716996, 22146245, 32212720, 35433992, 44292490, 70867984, 88584980, 177169960, 354339920]

約数ペア:

[(1, 354339920), (2, 177169960), (4, 88584980), (5, 70867984), (8, 44292490), (10, 35433992), (11, 32212720), (16, 22146245), (20, 17716996), (22, 16106360), (31, 11430320), (40, 8858498), (44, 8053180), (55, 6442544), (62, 5715160), (80, 4429249), (88, 4026590), (110, 3221272), (124, 2857580), (155, 2286064), (176, 2013295), (220, 1610636), (248, 1428790), (310, 1143032), (341, 1039120), (419, 845680), (440, 805318), (496, 714395), (620, 571516), (682, 519560), (838, 422840), (880, 402659), (961, 368720), (1240, 285758), (1364, 259780), (1676, 211420), (1705, 207824), (1922, 184360), (2095, 169136), (2480, 142879), (2728, 129890), (3352, 105710), (3410, 103912), (3844, 92180), (4190, 84568), (4609, 76880), (4805, 73744), (5456, 64945), (6704, 52855), (6820, 51956), (7688, 46090), (8380, 42284), (9218, 38440), (9610, 36872), (10571, 33520), (12989, 27280), (13640, 25978), (15376, 23045), (16760, 21142), (18436, 19220)]